Configuring Multipath I/O for Virtuozzo Storage iSCSI TargetsMultipath I/O is a technique called to increase fault tolerance and performance by establishing multiple paths to the same iSCSI target. The figure below shows a typical multipath-enabled network configured for exporting Virtuozzo Storage disk space over iSCSI. In this example are three Virtuozzo Hardware Nodes working in a Virtuozzo Storage cluster. Two Nodes host one iSCSI target each while the third hosts two iSCSI targets. Each Hardware Node is assigned a static or dynamic IP address from the FrontNet 1 and the same from the FrontNet 2. In turn, each iSCSI target is assigned a static IP address from the FrontNet 1 and a static IP address from the FrontNet 2. In case one of the frontnets fails, the iSCSI targets will still be accessible via the other one. To enable multipath I/O for a Virtuozzo Storage iSCSI target, assign to it multiple IP addresses from different networks using the # pstorage-iscsi create -n ps1 -a 192.168.10.101 -a 192.168.20.101 |
||||
|